BAD OC WARNING Exo is a digital virus, created by Tori Castillo. Different from all the others virus, Exo had an evolutionary function, which made it like a super virus. Tori was tired of working for years on exo, one day she decided to delete but exo didn't like it at all, and as a way of preserving herself she possessed Tori's body, Exo still maintaining her abilities (like code modifier aka reality manipu and other abilities).